I've set up a new head rig, exactly the same as another but in this one my eye pupils are not moving and I cannot understand why. Could anyone suggest what I maybe doing wrong?
Comparing the two characters I have. On the one where the eyes are working okay, on the right panel head icon, the eye pupil is highlighted blue but on my new head, which is layered exactly the same, the pupil is coming up on the icon showing the pupil and eyeball highlighted blue. Does that make sense?
Yep, that was the problem. I've unclicked the eyeball, and just left the pupil highlighted.
Yes, eyes can be tricky. Basically each face is looking for one left and right eye group, and if you don't have +pupils, eyeballs, or blinks inside them, some weird stuff can happen. I would always follow the naming/tagging conventions you see in the example puppets.